Question: 52. For a normal distribution, show that a) The upper quarnle equals + 670. b) The interquartile range, JQR. is related to by IQR =

52. For a normal distribution, show that

a) The upper quarnle equals + 670.

b) The interquartile range, JQR. is related to by IQR = 1.350.

c) For sample data that are approximately normal, an outlier (according to its definition for box plots) is an observation falling more than 2,7 standard deviations below or above the mean, and this happens for only 07% of the data.

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